Documentation/devicetree/bindings/media/i2c/ov7670.txt

   1 * Omnivision OV7670 CMOS sensor
   2
   3 The Omnivision OV7670 sensor supports multiple resolutions output, such as
   4 CIF, SVGA, UXGA. It also can support the YUV422/420, RGB565/555 or raw RGB
   5 output formats.
   6
   7 Required Properties:
   8 - compatible: should be "ovti,ov7670"
   9 - clocks: reference to the xclk input clock.
  10 - clock-names: should be "xclk".
  11
  12 Required Endpoint Properties:
  13 - hsync-active: active state of the HSYNC signal, 0/1 for LOW/HIGH respectively.
  14 - vsync-active: active state of the VSYNC signal, 0/1 for LOW/HIGH respectively.
  15
  16 Optional Properties:
  17 - reset-gpios: reference to the GPIO connected to the resetb pin, if any.
  18   Active is low.
  19 - powerdown-gpios: reference to the GPIO connected to the pwdn pin, if any.
  20   Active is high.
  21 - ov7670,pclk-hb-disable: a boolean property to suppress pixel clock output
  22   signal during horizontal blankings.
  23
  24 The device node must contain one 'port' child node with one 'endpoint' child
  25 sub-node for its digital output video port, in accordance with the video
  26 interface bindings defined in:
  27 Documentation/devicetree/bindings/media/video-interfaces.txt.
  28
  29 Example:
  30
  31         i2c1: i2c@f0018000 {
  32                 ov7670: camera@21 {
  33                         compatible = "ovti,ov7670";
  34                         reg = <0x21>;
  35                         pinctrl-names = "default";
  36                         pinctrl-0 = <&pinctrl_pck0_as_isi_mck &pinctrl_sensor_power &pinctrl_sensor_reset>;
  37                         reset-gpios = <&pioE 11 GPIO_ACTIVE_LOW>;
  38                         powerdown-gpios = <&pioE 13 GPIO_ACTIVE_HIGH>;
  39                         clocks = <&pck0>;
  40                         clock-names = "xclk";
  41                         assigned-clocks = <&pck0>;
  42                         assigned-clock-rates = <25000000>;
  43
  44                         ov7670,pclk-hb-disable;
  45
  46                         port {
  47                                 ov7670_0: endpoint {
  48                                         hsync-active = <0>;
  49                                         vsync-active = <0>;
  50
  51                                         remote-endpoint = <&isi_0>;
  52                                 };
  53                         };
  54                 };
  55         };